16649390720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{4217}}^1$

素因数の和:4466

約数の個数: 128

約数和(自身を含む): 41302656000

約数和(自身を除く): 24653265280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 199, 248, 310, 320, 398, 496, 620, 640, 796, 992, 995, 1240, 1592, 1984, 1990, 2480, 3184, 3968, 3980, 4217, 4960, 6169, 6368, 7960, 8434, 9920, 12338, 12736, 15920, 16868, 19840, 21085, 24676, 25472, 30845, 31840, 33736, 42170, 49352, 61690, 63680, 67472, 84340, 98704, 123380, 127360, 130727, 134944, 168680, 197408, 246760, 261454, 269888, 337360, 394816, 493520, 522908, 539776, 653635, 674720, 789632, 839183, 987040, 1045816, 1307270, 1349440, 1678366, 1974080, 2091632, 2614540, 2698880, 3356732, 3948160, 4183264, 4195915, 5229080, 6713464, 8366528, 8391830, 10458160, 13426928, 16733056, 16783660, 20916320, 26014673, 26853856, 33567320, 41832640, 52029346, 53707712, 67134640, 83665280, 104058692, 107415424, 130073365, 134269280, 208117384, 260146730, 268538560, 416234768, 520293460, 537077120, 832469536, 1040586920, 1664939072, 2081173840, 3329878144, 4162347680, 8324695360, 16649390720]

約数ペア:

[(1, 16649390720), (2, 8324695360), (4, 4162347680), (5, 3329878144), (8, 2081173840), (10, 1664939072), (16, 1040586920), (20, 832469536), (31, 537077120), (32, 520293460), (40, 416234768), (62, 268538560), (64, 260146730), (80, 208117384), (124, 134269280), (128, 130073365), (155, 107415424), (160, 104058692), (199, 83665280), (248, 67134640), (310, 53707712), (320, 52029346), (398, 41832640), (496, 33567320), (620, 26853856), (640, 26014673), (796, 20916320), (992, 16783660), (995, 16733056), (1240, 13426928), (1592, 10458160), (1984, 8391830), (1990, 8366528), (2480, 6713464), (3184, 5229080), (3968, 4195915), (3980, 4183264), (4217, 3948160), (4960, 3356732), (6169, 2698880), (6368, 2614540), (7960, 2091632), (8434, 1974080), (9920, 1678366), (12338, 1349440), (12736, 1307270), (15920, 1045816), (16868, 987040), (19840, 839183), (21085, 789632), (24676, 674720), (25472, 653635), (30845, 539776), (31840, 522908), (33736, 493520), (42170, 394816), (49352, 337360), (61690, 269888), (63680, 261454), (67472, 246760), (84340, 197408), (98704, 168680), (123380, 134944), (127360, 130727)]